Reversible mop



March 31, 1931. H, HERTZBERG 1,798,419

REVERSIBLE MOP Filed March 27, 1950 All 712k E 7 13 Patented Mar. 31, 1931 PATENT; o-FI-ilcr:y

HARRY' HERTZBERG, OF BROOKLYN, NEW YORK REVERSIBLE. MOB

Application filed March 27, 1939. Serial `No. 439,325.

This invention relates to dry mops of the reversible type and more particularly to that class of such mops in Which the mop material is held by twisted Wire-strands Which are bent to form a closed loop.

It is the object of the present invention to provide improved means for mounting the mop rotatably in its frame.

It is a further object of this invention to prevent interference of the mop material With the frame and for adjusting the position of the mop relatively to the frame.

With these and other objects in vie7 the invention also consists in certain novel features of construction, combination and ar rangements of parts which will be more fully described in these specifications and finally pointed out in the appended claims.

The invention is shovvn in the accompanyv 2o ing drawings which form a material part of this specification and in which:

Fig. 1 is a front elevation of my improved reversible mop. A part of the handle is shown in section to show the manner of fastening the frame thereto.v

Fig. 2 is a side elevation of the mop frame.

Fig. 3 is a transverse section on line 3 3 of Fig. 1.

Fig. 4 is a detail elevation of the stem of the .mop frame when disengaged from the handle.

Fig. 5 is a detail of the mop axis partly in section on line 5-5 of Fig. 1.

Fig. 6 is a detail section on line 6-6 of a5 Fig. 5.

Referring to Fig. 1 of the drawings, 11 is a mop handle which is provided With an axial aperture in one end. A yoke With arms 12b-12o and stem 12a, is held in the said 4o axial aperture of handle 11 by means of stem 12a. This yoke consists preferably of a single metallic bar of semioircular crosssection in its middle portion Which is folded upon itself to form stem 12a as shown 1n las Fig. 4. The adjacent flat faces of the bar forming said stem have a tendency to spring apart by their resiliency and to form an angle With each other. The end of the handle 11 is protected by a ferrule 13 provided With an aperture in alinement With that of handle 1'1. Vhen stem 12e` is driven into that aperture the two adjacent faces of 12a are forced to l-ie latagainst each other and: exert a strong pressure and consequent friction against the surrounding Wall formed by handle 12 which friction holds yoke 12 permanently fixed to saidl handle. i l

Thev two free ends 120 of theforked yoke have each an aperture therethrough in horizontal direction Which apertures are in aline ment with each other andl each holdv a; bolt 14 tightly fitted therein. @n each of saifd bolts 111A is mounted a bushing 15 provided at one of its endLf-aces with a transverse groove so that parallel ledges 15a are formed thereon. Between these ledges the parallel ends 120.015 the forked frame' are accommodated and pre.- ventV rotary motion of bushings 115 on bolts lll (see Figi '5). The opposite ends of bush# ings 15 have a shoulder 151)v and a tubular projection'15c on which. the. mop frame 18 is rotatably mounted vandi which also carries a washer 1 6 which may be pressed against the mop' frame and the latter against shoulder 15b`-by means of a Wingnut 19. Bushings 15 and AWashers 16 are preferably made4 of vulcanized fibre or similar material which has a high coefficient of friction. The mo frame V18 consistspreferably of a plurality of Wire strands between which soft mop. material 20 is intert-vvisted. This frame With the mop makterial thereon has the shape of a closed. loop preferably of the elongatedV form shown in Fig. 1. Qn diametrical'ly opposite sides Yof 'this lloop'rings 18a are, formed in the frame 18 and4 these rings embrace a preferably metallic collar 17 provided with two parallel flanges on the outside of; rings 18a. These collars 17' are held tightly by the tvv-ist of the Wire strands which form the rings 18a. Collars 17,` with frame 18 are mounted to rotate freely on the tubularYV projections 18o and their Wide flanges provide a large surface for clamping them and fra-me 18"between shoulders '15b and Washer l16 when nuts 19 are tightened 'againstv them.

The above described novel construction` has many features of advantage over similar olderdevices. One of the most important advantages isthe feature that the mop mathe forked supporting frame 12.

terial near the axis of the forked frame does nut rub against the frame parts 120 which is accomplished by the bushings which form distance pieces between the mop frame 18 and Another feature of advantage is provided by the flanged collar 17 which permits a smooth and uniform rotary motion of the frame 18 on its axis and also provides means for an eiicient clamping action.

The construction of the supporting frame l2 of a single and continuous metallic rod which by the spring action of stem 12a forms efiicient holding means on handle 11 eliminates separate fastening means, assures alinement of the bolts 14. and simplifies manufacturing operations whereby the cost of the device can be considerably reduced.

While I have above described a preferred form of my invention it shall be understood that modifications may be made in the design and arrangements of parts, or in the construction of details which come within the scope and spirit of the invention as claimed.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. A mop including a handle, a forked yoke on said handle, said yoke having two parallel arms, pivot-bolts held by said arms in axial alinement to each other, a looped frame rotatably mounted on said pivot bolts, mop material on said frame and distance pieces between said mop frame and each of said arms providing means to hold said mop material spaced from said arms.

2. A mop including a handle, having an axial aperture, a forked yoke on said handle consisting of a single metallic bar doubled upon itself in its middle portion to form a stem for insertion into said handle, said stem consisting of two parts tending to spread apart by their resiliency to exert pressure against the handle surrounding said stem,

" arms integral with said stem outside of said handle, a looped mop frame pivotally held between said arms and means on each arm to clamp said frame thereto.

3. A mop including a handle, a forked yoke on said handle having two arms parallel to cach other, pivot-bolts in said arms in axial alinement with each other, a looped frame rotatably mounted on said pivot bolts, said frame consisting of twisted wire strands, mop material intertwisted between said strands and a pair of ianged collars held by the twist of said strands in axial alinement at opposite ends of said frame, said collars being mounted on said pivot bolts for rotation thereon, and means on said bolts to clamp said collars against said frame.

1. A mop including a handle, a forked yoke on said handle having parallel arms, pivot bolts on said arms in axial alinement with each other, a bushing on each bolt between said arms, a looped mop frame rotatably mounted on said bushings, means to clamp said frame against said bushings to hold said frame in fixed position on said yoke and means holding said bushings in fixed position on said arms. w Signed at Brooklyn, in the county of Kings and State of New York, this th day of March, A. D. 1930.

HARRY HERTZBERG. 

